CVE-2016-9203: Cisco Asr 5000 Series Software

High severity, CVSS 7.5. EPSS: 3.5% chance of exploitation in the next 30 days.

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) feature of Cisco ASR 5000 Series Software could allow an unauthenticated, remote attacker to cause a reload of the ipsecmgr process. More Information: CSCvb38398. Known Affected Releases: 20.2.3 20.2.3.65026. Known Fixed Releases: 21.1.M0.65431 21.1.PP0.65733 21.1.R0.65467 21.1.R0.65496 21.1.VC0.65434 21.1.VC0.65489 21.2.A0.65437.

Affected products

• Cisco Asr 5000 Series Software: version 20.0.2.3.65026 only

Published 2016-12-14. Last modified 2026-06-17.